Sure thing, let's get straight to it. We start with 300 and we're going to multiply it by 134, which means adding 300 to itself 134 times.
Step 1: 0 + 300 = 300
Step 2: 300 + 300 = 600
Step 3: 600 + 300 = 900
Step 4: 900 + 300 = 1200
Step 5: 1200 + 300 = 1500
Step 6: 1500 + 300 = 1800
Step 7: 1800 + 300 = 2100
Step 8: 2100 + 300 = 2400
Step 9: 2400 + 300 = 2700
Step 10: 2700 + 300 = 3000
Step 11: 3000 + 300 = 3300
Step 12: 3300 + 300 = 3600
Step 13: 3600 + 300 = 3900
Step 14: 3900 + 300 = 4200
Step 15: 4200 + 300 = 4500
Step 16: 4500 + 300 = 4800
Step 17: 4800 + 300 = 5100
Step 18: 5100 + 300 = 5400
Step 19: 5400 + 300 = 5700
Step 20: 5700 + 300 = 6000
Step 21: 6000 + 300 = 6300
Step 22: 6300 + 300 = 6600
Step 23: 6600 + 300 = 6900
Step 24: 6900 + 300 = 7200
Step 25: 7200 + 300 = 7500
Step 26: 7500 + 300 = 7800
Step 27: 7800 + 300 = 8100
Step 28: 8100 + 300 = 8400
Step 29: 8400 + 300 = 8700
Step 30: 8700 + 300 = 9000
Step 31: 9000 + 300 = 9300
Step 32: 9300 + 300 = 9600
Step 33: 9600 + 300 = 9900
Step 34: 9900 + 300 = 10200
Step 35: 10200 + 300 = 10500
Step 36: 10500 + 300 = 10800
Step 37: 10800 + 300 = 11100
Step 38: 11100 + 300 = 11400
Step 39: 11400 + 300 = 11700
Step 40: 11700 + 300 = 12000
Step 41: 12000 + 300 = 12300
Step 42: 12300 + 300 = 12600
Step 43: 12600 + 300 = 12900
Step 44: 12900 + 300 = 13200
Step 45: 13200 + 300 = 13500
Step 46: 13500 + 300 = 13800
Step 47: 13800 + 300 = 14100
Step 48: 14100 + 300 = 14400
Step 49: 14400 + 300 = 14700
Step 50: 14700 + 300 = 15000
Step 51: 15000 + 300 = 15300
Step 52: 15300 + 300 = 15600
Step 53: 15600 + 300 = 15900
Step 54: 15900 + 300 = 16200
Step 55: 16200 + 300 = 16500
Step 56: 16500 + 300 = 16800
Step 57: 16800 + 300 = 17100
Step 58: 17100 + 300 = 17400
Step 59: 17400 + 300 = 17700
Step 60: 17700 + 300 = 18000
Step 61: 18000 + 300 = 18300
Step 62: 18300 + 300 = 18600
Step 63: 18600 + 300 = 18900
Step 64: 18900 + 300 = 19200
Step 65: 19200 + 300 = 19500
Step 66: 19500 + 300 = 19800
Step 67: 19800 + 300 = 20100
Step 68: 20100 + 300 = 20400
Step 69: 20400 + 300 = 20700
Step 70: 20700 + 300 = 21000
Step 71: 21000 + 300 = 21300
Step 72: 21300 + 300 = 21600
Step 73: 21600 + 300 = 21900
Step 74: 21900 + 300 = 22200
Step 75: 22200 + 300 = 22500
Step 76: 22500 + 300 = 22800
Step 77: 22800 + 300 = 23100
Step 78: 23100 + 300 = 23400
Step 79: 23400 + 300 = 23700
Step 80: 23700 + 300 = 24000
Step 81: 24000 + 300 = 24300
Step 82: 24300 + 300 = 24600
Step 83: 24600 + 300 = 24900
Step 84: 24900 + 300 = 25200
Step 85: 25200 + 300 = 25500
Step 86: 25500 + 300 = 25800
Step 87: 25800 + 300 = 26100
Step 88: 26100 + 300 = 26400
Step 89: 26400 + 300 = 26700
Step 90: 26700 + 300 = 27000
Step 91: 27000 + 300 = 27300
Step 92: 27300 + 300 = 27600
Step 93: 27600 + 300 = 27900
Step 94: 27900 + 300 = 28200
Step 95: 28200 + 300 = 28500
Step 96: 28500 + 300 = 28800
Step 97: 28800 + 300 = 29100
Step 98: 29100 + 300 = 29400
Step 99: 29400 + 300 = 29700
Step 100: 29700 + 300 = 30000
Step 101: 30000 + 300 = 30300
Step 102: 30300 + 300 = 30600
Step 103: 30600 + 300 = 30900
Step 104: 30900 + 300 = 31200
Step 105: 31200 + 300 = 31500
Step 106: 31500 + 300 = 31800
Step 107: 31800 + 300 = 32100
Step 108: 32100 + 300 = 32400
Step 109: 32400 + 300 = 32700
Step 110: 32700 + 300 = 33000
Step 111: 33000 + 300 = 33300
Step 112: 33300 + 300 = 33600
Step 113: 33600 + 300 = 33900
Step 114: 33900 + 300 = 34200
Step 115: 34200 + 300 = 34500
Step 116: 34500 + 300 = 34800
Step 117: 34800 + 300 = 35100
Step 118: 35100 + 300 = 35400
Step 119: 35400 + 300 = 35700
Step 120: 35700 + 300 = 36000
Step 121: 36000 + 300 = 36300
Step 122: 36300 + 300 = 36600
Step 123: 36600 + 300 = 36900
Step 124: 36900 + 300 = 37200
Step 125: 37200 + 300 = 37500
Step 126: 37500 + 300 = 37800
Step 127: 37800 + 300 = 38100
Step 128: 38100 + 300 = 38400
Step 129: 38400 + 300 = 38700
Step 130: 38700 + 300 = 39000
Step 131: 39000 + 300 = 39300
Step 132: 39300 + 300 = 39600
Step 133: 39600 + 300 = 39900
Step 134: 39900 + 300 = 40200

So, 300*134 = 40200